Dai-Ichi High Frequency Co., Ltd.

Dai-Ichi High Frequency Co., Ltd. (DHF) is a Japanese technology company that develops and supplies high-frequency induction heating solutions and related industrial products. Its business spans pipe processing, surface treatment, machinery, rebar systems, bimetal products and plant engineering, including high-frequency induction bending, polyethylene lining, prefabrication, induction quenching and heat treatment, laser heat treatment, maintenance services, small high-efficiency induction melting furnaces, and coating removal equipment.

DHF's proprietary technologies serve demanding sectors such as waste incineration power boilers, biomass power plants and industrial piping, where Ni-base alloy spray coatings applied with induction re-melting extend pipe life and lengthen maintenance intervals. The company also promotes the T-head rebar method for RC building and civil structures and operates an extensive network of bases across Japan, supported by design assistance, testing and plant engineering services.